Positive-feed lubricator.



PATENTED MAR. 12, 1907.

J. H. WESSON.

APPLICATION FILED JUNE "7, 1906.

surface of the liquidv lubricant placed in the JOSEPH 'H. WESSON, OF SPRINGFTELD, MASSACHUSETTS.

Specification of Letters Patent.

POSITIVE-FEED LUBRICATOR.

Patented mach 12,1907.

Am a med June 7,1900. Serial No. 320.549.

To all whom it may concern.-

Be it known that I, JOSEPH H. 'Essox, a citizen .of the United States of America, residing at Springfield, in the count-y of Hampdenand St ate of Massachusetts, have invent- .ed new and useful Improvements in Positive- Feed Lubricators, of WlllCh the following is a specification.

This invention relates to a lubricating l rnechanisnrfor engines or other pieces of machinery, and is particularly adapted for con- 5 veving the lubricant to the nalecombustion engine.

Broadly, the invention consists in securing a tube in the piston-head in which is formed a chamber communicating with the ordinary peripheral channels in the same. The other end of the-tube carries apump provided with a sprin -controlled plunger, the barrel of the pump )eing arranged to extend below the bottom 'of the crank-casing;

The pump-barrel is provided with an oilj inlet communicatingwith the interior of the tube and past which the plunger reciproczites. When the piston descends, the plunger isi brought into. engagement with an abutment l in the bottom of the crank-case and the small quantity of oil caughton'the upper end of the plunger-is forced through the tube into the recess of the piston-head. From this recess the oil escapes to the sides of the piston.

- plication,Figure1 is avertical sect-ion-online In the drawings forming part of-this ar)- 1 1, Fig. 2'. Fig. 2 is a horizontal sectional View on the line? 2, Fig. 1. Fig. 3 is a detailed view of the pump, showing the springpressed plunger and barrel in which the plun provider lug-channels e for contaln ng the piston; rin s or other suitable packing.-

er reciprocates and also showing a b all-valve Tocated near the upper end of the barrel.

I Referring-to the drawings in detail, (I des- 'cumulat ,d in the barrel it between the inlet i(gnates the cylindrical casing of an engineg m and't' 1e ball-valve twill be forced or driven preferably an. internal-combustion engine,) to which is bolted the ordinary crank-casing b by means of the machine-bolts c.

d desi nates thepiston-head of the engine fwith the usual circumferential oildesignates an oil-retaining chamber if the upper part of the piston-head, and leading li'om this chamber'are two small passage- H iways g and h, communicating with the-upperimost one of the channels e.

7i designates a tube threaded at its upper and and screwed into the platen :1, so as to piston of an inter-v I atiord communication with the chamber f. l The 0 posite end of this tube 71 passes through a gui e-sleeve or tube j, that is preferably a part of the crank-casing b as shown in Fig. 2 at j. The tube i extends below the sleeve j, as shown in Fig. 1.

'l'c designates a barrel adjust-ably secured in l the lower end of the tube i by screw-threads or other suitable meansfas, for example, a driving fit. Passing transversely through enter when the porn is carried below; the surface of the oil. T e lower end of the barrel k is provided with a spring retracted plunger 11 and has a head 0, adapted to strike the shoulder 1) of the casing when the tube 1' and l barrel k are carried downward by the move mentof the piston d. A spring q normally draws the plunger 12 below'the bottom line of the inlet-port m. This s ring is located between the bottom of the arrel k and the head 0;

I plunger 11 is provided with an enlargement or piston 1*, adapted for reciprocation inthe bore 8 of the barrel I 't designates a ball-valve at theupper end of the. bore s, which is prevented from rising more than a limited distance by the transversely-located pin u.

i It will be observed that the ball-valve is 10- cated in a chamber having a larger diameter.

than the bore act the barrel.

In the pesition of the parts as shown in 9o 1 the trite t m. is'below the surface of the oil '0 l in the bottom of the crank-casing, allowing the sameto flow freely over the'upper endof the piston r, and when the head 0 of the I spring-retracted plunger n strikes the shoulder p a ?an portion of the oil which has acquickly through the bore 8, raising the ballvalve t and allowing the oilto pass through I the/tube iand be forced into the chamber or c inpartmentf, from whence it is forced or can pass freely throughithgpassage-ways g and 1, to the piston-ring e.

The surplus oil on the inside of the casing a will readily drop back into the tank-chamber b, as clearl understood.

It is un erstood that the tube i should be forced into thh chamber);

The barrel k is so adjusted in the tube '5 that in the extreme downward position of the completely filled with oil before any can be r the barrel k is an inlet m for the lubricant to The upper end of the normally retracted piston d the barrel is will be moved into the oil a depth Substantially equal to the distance orn the inlet 11: to the valve t, whereby when be head 0 strikes the shoulder p a small quantity of oil will be forced past theballvalve 11 until the tube '41 is completely filled, and at each subsequent reciprocation a small quantity of oil will escape from the upper end of the tube i into the chamber f and from there through the passage-ways g and h to the periphery of the piston. 'lhis inlet may be made very small and the travel of the plunger n correspondingly reduced.

The ball-valve t eflectively prevents the confined lubricant frozn escaping back into the reservoirat the botton of the crank-casing, as readily understood. In order to ac curatcl gage the depth that the pump k is carried below the surface of the lubricant and determine the amount of oil forced past the valve t, I have made the head 0 adjustable in the lower end of'the )lunger as shown, by means of the screw-threads v. "u; designates a partition in the casing 12 for confining the oil "0 to a small portion only of this compartment. By this arrangement I completely do away with the use of a splash oilmg mechanism. By means of this mechanisrn I am enabled to thoroughly lubricate the .portion of the piston immediately adjacent the point where the explosion occurs and at which point it has heretofore been'difiicult to thoroughly lubricate.

Having thus described my invention, What I clain, and desire to secure by Letters Pat- .ent of the United States, is-

1. In a luhrieator, a piston-head, a pump carried by the piston-head and having an inlet, a-piston for sweeping across the inlet and actuated by the piston-head, a valve between the inlet and the piston-head whereby when the pump is carried into a reservoir of oila definite amount of the same is forced by the piston to the piston-head, as described.

2. In a lubrieator, a cylinder having a crank-easing adapted to contain a lubricant and having a shoulder on the same, means extending from the piston to within a short distance of the crank-easing, a sleeve for guiding said means, a barrel having an openin; secured to said means, aplnnger carried by the barrel and adapted to open and close the opcning,\vl1ereby when'the opening is brought below the level of the lubricant and the plunger engages said shoulder, the oil will be forced through said means.

JOSEPH I-I. WESSON. Witnesses:

WM. Il. (3111mm, H. W. Bowen. 

